Additionally, EPA's Office of Transportation and Air Quality posts new fuels and fuel additives documents in the Document Index System. Document Index System (DIS) is a searchable repository of mobile source documents including:

Regulations & Standards

Final Rules

Notice of Proposed Rulemakings (NPRM)

Fact Sheets

Federal Register Notices

Fuel Registration & Reporting Forms

Waivers (Only those currently in electronic form)

Compliance Help Documents

Q&A Documents

Workshop Documents

Guidance Documents

If you have questions or request information, please contact the appropriate support or help line found on the Support & Help page.